Color Vision Deficiencies By Color Deficiency Differences in

Color Vision Deficiencies By:

Color Deficiency Differences in cone photopigments resulting in differences in color experience. Dichromat Vision Protanopes and Deuteranopes: missing the Icone or M-cone system Difficulty with yellow and blues Tritanope: missing S-cone system. Difficulty with red and green. Occurs in 1% of Caucasian males (Foley and Martin)

Protanopia (Red-Green Colorblindness) Protan color blindness: less sensitive to red light Dueteranopia: sensitiveness to green light Completely missing L-cone: protanopia Referred to as Dichromats only two working cone types compared to normal vision (Trichromats). (Colblinder, 2014)

Testing http: //cataract-surgery. info/colour_blindness_test. html

Genetics and Treatment Mutation in OPN 1 LW, OPN 1 MW and OPN 1 SW genes Genes located on X chromosomes; X-linked recessive pattern; more common in males. (Genetics Home Reference, 2015) There are no treatment options for this disorder.

Living with Color Blindness http: //www. colourblindawareness. org/colour-blindness/living-with-colour -vision-deficiency/

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References Colblinder. (2014). Protanopia – Red-Green Color Blindness. Retrieved from: http: //www. colorblindness. com/protanopia-red-green-color-blindness/ Foley, H. and Martin, M. Sensation and Perception. Skidmore University. Retrieve from: http: //www. skidmore. edu/~hfoley/Perc 7. htm#ch 7 demo 3 Genetics Home Reference. (2015). Color Vision Deficiency. Retrieved from: http: //ghr. nlm. nih. gov/condition/colorvision-deficiency